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I have started OG 10, OG 11, 12 and 13 will continue...I will post daily 10 question from OG 10 Once OG 10 is done will move to OG 11, 12 and 13........Are there like minded people are Invited.

However Easy might be the question, I m thinking of going step by step , First accuracy and than timing.I will daily post the answers......Somewehre around night time, There will be 2 sets everyday i.e 20 OG questions

So here is the first set:- Date 26th Dec 06 in the morning (IST + 5:30 GMT)

1. The Wallerstein study indicates that even after a decade young men and women still experience some ofthe effects of a divorce occurring when a child.(A) occurring when a child(B) occurring when children(C) that occurred when a child(D) that occurred when they were children(E) that has occurred as each was a child2. Since 1981, when the farm depression began, the number of acres overseen by professionalfarm-management companies have grown from 48 million to nearly 59 million, an area that is aboutColorado's size.(A) have grown from 48 million to nearly 59 million, an area that is about Colorado's size(B) have grown from 48 million to nearly 59 million, about the size of Colorado(C) has grown from 48 million to nearly 59 million, an area about the size of Colorado(D) has grown from 48 million up to nearly 59 million, an area about the size of Colorado's(E) has grown from 48 million up to nearly 59 million, about Colorado's size3. Some bat caves, like honeybee hives, have residents that take on different duties such as defending theentrance, acting as sentinels and to sound a warning at the approach of danger, and scouting outside thecave for new food and roosting sites.(A) acting as sentinels and to sound(B) acting as sentinels and sounding(C) to act as sentinels and sound(D) to act as sentinels and to sound(E) to act as a sentinel sounding4. The only way for growers to salvage frozen citrus is to process them quickly into juice concentrate beforethey rot when warmer weather returns.(A) to process them quickly into juice concentrate before they rot when warmer weather returns(B) if they are quickly processed into juice concentrate before warmer weather returns to rot them(C) for them to be processed quickly into juice concentrate before the fruit rots when warmer weatherreturns(D) if the fruit is quickly processed into juice concentrate before they rot when warmer weather returns(E) to have it quickly processed into juice concentrate before warmer weather returns and rots the fruit5. Carbon-14 dating reveals that the megalithic monuments in Brittany are nearly 2,000 years as old as any oftheir supposed Mediterranean predecessors.(A) as old as any of their supposed(B) older than any of their supposed(C) as old as their supposed(D) older than any of their supposedly(E) as old as their supposedly6. In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are theorganism's trying to metabolize, or render harmless. the chemical that is irritating it.(A) trying to metabolize, or render harmless, the chemical that is irritating it(B) trying that it metabolize, or render harmless, the . chemical irritant107(C) attempt to try to metabolize, or render harmless, such a chemical irritant(D) attempt to try and metabolize, or render harmless, the chemical irritating it(E) attempt to metabolize, or render harmless, the chemical irritant7. Dr. Hakuta's research among Hispanic children in the United States indicates that the more the childrenuse both Spanish and English, their intellectual advantage is greater in skills underlying reading ability andnonverbal logic.(A) their intellectual advantage is greater in skills underlying reading ability and nonverbal logic(B) their intellectual advantage is the greater in skills underlaying reading ability and nonverbal logic(C) the greater their intellectual advantage in skills underlying reading ability and nonverbal logic(D) in skills that underlay reading ability and nonverbal logic, their intellectual advantage is the greater(E) in skills underlying reading ability and nonverbal logic, the greater intellectual advantage is theirs8. Lacking information about energy use, people tend to overestimate the amount of energy used byequipment. such as lights, that are visible and must be turned on and off and underestimate that used byunobtrusive equipment, such as water heaters.(A) equipment, such as lights, that are visible and must be turned on and off and underestimate that(B) equipment, such as lights, that are visible and must be turned on and off and underestimate it when(C) equipment, such as lights, that is visible and must be turned on and off and underestimate it when(D) visible equipment, such as lights, that must be turned on and off and underestimate that(E) visible equipment, such as lights, that must be turned on and off and underestimate it when9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that theybelieve is a type previously unknown to science.(A) that they believe is(B) that they believe it to be(C) they believe that it is of(D) they believe that is(E) they believe to be of10. However much United States voters may agree that there is waste in government and that the governmentas a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimalstate.(A) However much United States voters may agree that(B) Despite the agreement among United States voters to the fact(C) Although United States voters agree(D) Even though United States voters may agree(E) There is agreement among United States voters that

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Preparations are going well, apart from verbal. Sometimes SC becomes my strong area, sometimes CR and sometimes RC. Don't have any idea what am I going to do on the real thing.

I had the same problem initially so I kept mixing things up 5 CR then 5 SC then an RC and keep switching back to SC, CR etc first few days wasn't that great but after few days I got used to it and was having pretty good accuracy in all 3 areas.

carcass wrote:

remember that verbal is the most important part of the test.

If you pick even 60% right on quant but in verbal you are strong, really, you can reach easely 720 730 it depends.

RC also is the most underrated part but in the end is the part that affects your verbal part.

Well said carcass its true verbal is really important for a good GMAT score.

Four out of ten are wrong,,can anyone help me in figuring out my problems,,,,Thank You In advance....

9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that theybelieve is a type previously unknown to science.(A) that they believe is--when you have 'one' referring back to explosion you don't need that (hence wrong due to redundancy issue )(B) that they believe it to be---that and it again redundancy issue(C) they believe that it is of--same issue as B(D) they believe that is--Same issue as A(E) they believe to be of----correct idiom no redundancy so it E

10. However much United States voters may agree that there is waste in government and that the governmentas a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimalstate.

MAY agree= probability VS agree/agreement= certainty , so B ,C, E-Change the meaning of the sentence(A) However much United States voters may agree that(B) Despite the agreement among United States voters to the fact(C) Although United States voters agree(D) Even though United States voters may agree there is waste in government and that the governmentas a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimalstate.---may agree THAT , 'that' is missing we need a relative clause after agree and the absence of THAT spoils the parallelism with (and that the government as a whole..............)(E) There is agreement among United States voters that

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27 Dec 2012, 19:35

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Hi guys,Here are the takeaways The format will be as follows:---Q numberConcepts testedExpert comments & articles related to the concept or question Link to previous valuable discussions on the same topic

Q 31

Concepts-Use of unlikeLike & unlike can only compare two nouns and like means ‘similar to”For comparing clauses use ‘as’ Usage of whichThe preposition ‘which’ usually only modifies the preceding noun, Occasionally it can jump over a prepositional phrase to modify a noun Meaning change* there's also a slight change in meaning."....recognize that their ... skills are weak" just means that the people should know that they have weak skills."...Recognize the weakness..." means that they should actually be able to point out the specific weakness.

Previous Expert comments—Ron on Mgmt forum Usage of While +adjective phrase* if you're going to use "while" with an adjective phrase (while willing to...), then that adjective phrase should precede the main verb.i.e., many people, while willing to... , are disinclined to...

Usage of which--Ron mgmtnouns that are modified by prepositional phrases can still be the referent of 'which' even if they are a few words distant from it.This usually happens when the immediately preceding noun is grammatically incompatible with the verb after "which".

For example: "The picture of my brothers, which was taken last year in Mexico, is one of my favorites."

You might object to this sentence on the grounds that 'which' might be taken to modify 'brothers'. And, in a strict sort of way, you'd be right. But here's the catch: There's really no other reasonable way to write this sentence. You just can't get 'picture' next to the 'which' clause without creating total nonsense, or splitting the sentence into 2 smaller sentencesplus, 'brothers' is plural, and is incompatible with 'which WAS'.This is an interesting point, though, and subtle at that.

Q32

Concepts--- Meaning The problem says that some buildings “were destroyed and heavily damaged” but that doesn’t actually make sense! A building is either destroyed or heavily damaged, but it can’t be both simultaneously because these are two different states on the same continuum. The correct answer, B, switches that “and” to the more logical “or.”Answers B and E are both grammatically correct, but they have different meanings.-Stacy Koprince mgmt

Tense The buildings were first built thereafter destroyed, so we need past perfect tense to indicate that the correct answer will read ‘some of the buildings that were destroyed (past tense) or heavily damaged in the earthquake had been(past perfect tense)

Placement of words/single word Last year modifies the year of the earth quake, so it should be placed as close to that as in B IN Choice E Last year is illogically is placed close to buildings, so it appears as if buildings were built last year

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25 Dec 2012, 19:51

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Archit143 wrote:

2. Since 1981, when the farm depression began, the number of acres overseen by professionalfarm-management companies have grown from 48 million to nearly 59 million, an area that is aboutColorado's size.(A) have grown from 48 million to nearly 59 million, an area that is about Colorado's size(B) have grown from 48 million to nearly 59 million, about the size of Colorado(C) has grown from 48 million to nearly 59 million, an area about the size of Colorado(D) has grown from 48 million up to nearly 59 million, an area about the size of Colorado's(E) has grown from 48 million up to nearly 59 million, about Colorado's size

Pls comment on what is wrong is the usage of "about Colorado's size" i think its perfectly fine...only thing is that it has an idionm error in option E i.e from X up to y

Hii Archit.In the correct answer choice, it is a must to use an appositive. An appositive describes a noun which is far away. In the status quo, without the appositive "an area" it seems that number is about the Colorado's size. If you use appositive "an area", then in such a case 59 million would be treated together with "acres" AS AN AREA.Another issue with E is that it uses possessives. GMAT tends to avoid that. In fact, answer choice D seems nice unless you notice the usage of possessive noun.Hope that helps.
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25 Dec 2012, 20:14

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Please elaborate on your first question. To your second question-

Quote:

9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that theybelieve is a type previously unknown to science.(A) that they believe is(B) that they believe it to be(C) they believe that it is of(D) they believe that is(E) they believe to be of

In the answer choice C, there is an issue of redundancy. Why shall we be needing another pronoun when already we have mentioned "one" that points to the supernova explosion? Logical isn't it? Hope that helps.
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The 9th question is testing idiom. Believe to be is the preferred format. BTW great initiative.

Lets see till when can i sustain.. So great initiative needs to be applauded with kudos so where is mine

Coming to the question i had previously read "think of x to be y " as wrong I have noted it down in my error log "Think X as Y " is correct hence i used the same logic but in my hindsight believe that "believe x to be y " is true...If someone can come up with a perfect reasoning and evidence as to which one is correct i.e. "Believe X to be Y" or "Believe of X as Y"

Four out of ten are wrong,,can anyone help me in figuring out my problems,,,,Thank You In advance....

2. Since 1981, when the farm depression began, the number of acres overseen by professionalfarm-management companies have grown from 48 million to nearly 59 million, an area that is aboutColorado's size.(A) have grown from 48 million to nearly 59 million, an area that is about Colorado's size(B) have grown from 48 million to nearly 59 million, about the size of Colorado(C) has grown from 48 million to nearly 59 million, an area about the size of Colorado(D) has grown from 48 million up to nearly 59 million, an area about the size of Colorado's(E) has grown from 48 million up to nearly 59 million, about Colorado's size--Idiom is from X to Y , Not 'up to' Y . Without using the appositive modifier 'an area' the modifier about Colorado's size is left dangling. Stylistically size of Colorado is preferred to Colorado's size

6. In virtually all types of tissue in every animal species, dioxin induces the production of enzymes that are theorganism's trying to metabolize, or render harmless. the chemical that is irritating it.(A) trying to metabolize, or render harmless, the chemical that is irritating it-dioxin induces.......organism's trying to metabolize?? doesn't make sense. moreover trying is not // to render. C is concise and corrects both these errors(B) trying that it metabolize, or render harmless, the . chemical irritant107(C) attempt to try to metabolize, or render harmless, such a chemical irritant(D) attempt to try and metabolize, or render harmless, the chemical irritating it(E) attempt to metabolize, or render harmless, the chemical irritant
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Four out of ten are wrong,,can anyone help me in figuring out my problems,,,,Thank You In advance....

9. Astronomers at the Palomar Observatory have discovered a distant supernova explosion, one that theybelieve is a type previously unknown to science.(A) that they believe is--when you have 'one' referring back to explosion you don't need that (hence wrong due to redundancy issue )(B) that they believe it to be---that and it again redundancy issue(C) they believe that it is of--same issue as B(D) they believe that is--Same issue as A(E) they believe to be of----correct idiom no redundancy so it E

10. However much United States voters may agree that there is waste in government and that the governmentas a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimalstate.

MAY agree= probability VS agree/agreement= certainty , so B ,C, E-Change the meaning of the sentence(A) However much United States voters may agree that(B) Despite the agreement among United States voters to the fact(C) Although United States voters agree(D) Even though United States voters may agree there is waste in government and that the governmentas a whole spends beyond its means, it is difficult to find broad support for a movement toward a minimalstate.---may agree THAT , 'that' is missing we need a relative clause after agree and the absence of THAT spoils the parallelism with (and that the government as a whole..............)(E) There is agreement among United States voters that

so A it is

Thank You so much,,,,,It was very helpful,,,,looking forward to the next list of the sentences..

Your welcome. btw Thanks=kudos I am waiting for the next 10 too.
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26 Dec 2012, 17:54

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Archit143 wrote:

dentobizz wrote:

Archit143 wrote:

29. In three centuries--from 1050 to 1350--several million tons of stone were quarried in France for the buildingof eighty cathedrals, five hundred large churches, and some tens of thousands of parish churches.(A) for the building of eighty cathedrals, five hundred large churches, and some(B) in order that they might build eighty cathedrals, five hundred large churches, and some(C) so as they might build eighty cathedrals, five hundred large churches, and some(D) so that there could be built eighty cathedrals, five hundred large churches, and(E) such that they could build eighty cathedrals, five hundred large churches, and

Your answer to Q 29 is wrong try again with logic and not by sound....

(A) for the building of eighty cathedrals, five hundred large churches, and some(B) in order that they might build eighty cathedrals, five hundred large churches, and some(C) so as they might build eighty cathedrals, five hundred large churches, and some(D) so that there could be built eighty cathedrals, five hundred large churches, and(E) such that they could build eighty cathedrals, five hundred large churches, and

ok here's what I think , B,C,E are off bcoz 'they' doesn't have a antecedent and--- (in order that , so as, such) are either redundant or do not indicate purposeso this leaves us with A and D

I think the construction in A should be 'for building' NOT 'for the building of 'in D so that indicates purpose but there could be built is a awkward construction .

ok , D also has a change in meaning [could be built vs for building] could--capability , so original meaning changes and 'for the building of ' used in A is gramatically correct so A
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29 Dec 2012, 13:53

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Here are some more takeaways

Q number--38 39 40

Concepts tested

--ING modifiers (38, 39) -ing modifiers are a topic in themselvestheir usage differs depending upon the presence/absence of comma before them. Most OG question have --ing modifiers as the opening modifiers which should be followed by a subject immediately in most cases.

From the meaning standpoint -ing modifiers indicate a on going simultaneous action OR and cause-consequence relation b/w the modifier and the clause. So always check is the meaning of the sentence warrants its use. (in depth application of the modifiers is covered in e-gmat articles listed below and Thursdays with Ron session-- Link given below)

to+verbTO+verb incidates purpose/inntent to doxxxeg-- I am on a diet to loose weight (RIGHT purpose of dieting is loosing wt)

Arvind Adiga won the Booker's prize to write,the book , The white tiger (WRONG The purpose for writing the book is not winning the prize )Arvind Adiga won the Booker's prize for writing ,the book,The white tiger--correct

rather than Vs Instead of Instead of is used to compare nouns whereas rather than is used to compare clausesinstead of and rather than also differ VERY slightly in meaninginstead of --indicates replacement and rather than--indicates -selection b/w things

comma+Infinitive is wrongA infinitive CANNOT be preceded by a COMMA

Expert comments & articles related to the concept or question

'We can't use an infinitive after the comma. Remember that an infinitive functions as a verb, but we're trying to introduce a modifying clause here to provide further information about the military equipment. (q 39)This is just one of those things you have to memorize, unfortunately, especially if you are not a native speaker'-Stacy Mgmt

'think about the meaning of the sentence: you have a contrast between an application over a continuous surface (in which "over" actually makes logical sense), on the one hand, and a different application at a series of (individual) points, on the other hand.the issue, then, is the meaning of each preposition -- this is not a question about idioms. (q 40)when something happens at a single location, "at" is used; it makes no sense to say that something happens "over" a single point (or several single points -- still ultimately the same issue)'.—Ron

Rather than vs Instead of----There IS a crucial difference between "rather than" and "instead of" that you should know. "Rather than" is a conjunction and so can be followed by basically anything, whereas "instead of" is a (complex) preposition -- and a preposition should be followed only by a noun. Now, the noun can be an "-ing" verb, known as a gerund. However, the GMAT seems to prefer "rather than" in comparisons of verbs, because the parallelism is clearest: (1) "I ski rather than snowboard." -- Correct. (2) "I ski instead of snowboarding." -- Correct, but a 'little' less parallel, so (1) is slightly preferable. The GMAT probably won't test this point in isolation, though, so we're going to revise the question. You can also use "rather than" to compare phrases or clauses. In that context, "instead of" is absolutely wrong, even though it's heard in spoken English: (3) "I went in the cellar rather than in the attic." -- Correct. (4) "I went in the cellar instead of in the attic." -- INCORRECT although this 'sounds' normal to me, to be honest! (That's why you have to retrain your ear -- it's not always grammatically right!) (5) "I went in the cellar instead of the attic." -- Also correct. No difference in preference between (3) and (5).

As for the meaning of the two expressions -- to my ear, they have slightly different connotations or nuances ("instead of" sounds more like an actual replacement to me than "rather than," which is somehow softer), but the GMAT doesn't seem to test that connotational difference.--mgmt forumsSo -- when in doubt, go with "rather than"!

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25 Dec 2012, 19:23

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Lets discuss First one....................1. The Wallerstein study indicates that even after a decade young men and women still experience some ofthe effects of a divorce occurring when a child.(A) occurring when a child(B) occurring when children(C) that occurred when a child(D) that occurred when they were children(E) that has occurred as each was a childIts pretty straight fwd but we will try to analyze S_V error exist. Some may be misguide that last clause "the effects of a divorce occuring when a child does not has a verb but its wrong here divorce is used as a verb and not as a noun, Moreover Occuring Is correctly modifying the preceding noun but the meaning is not clear. Hence it cannot be termed as the right answer and Hence A is wrong. The use of Child is wrong , it should be children. Option C, D and E correctly uses that but Option C wrongly uses Child and hence is wrong.... E uses past perfect "Has" and hence is wrong...The correct answer is D. Note that Use Of each here has nothing to do with the singular uses...each when used not as subject has no impact on the verb

The 9th question is testing idiom. Believe to be is the preferred format. BTW great initiative.

Lets see till when can i sustain.. So great initiative needs to be applauded with kudos so where is mine

Coming to the question i had previously read "think of x to be y " as wrong I have noted it down in my error log "Think X as Y " is correct hence i used the same logic but in my hindsight believe that "believe x to be y " is true...If someone can come up with a perfect reasoning and evidence as to which one is correct i.e. "Believe X to be Y" or "Believe of X as Y"

I don't think its believe of X as Y I've never heard of that idiom (it doesn't sound right). Also note it is "Think of X as Y" Zeke has a comprehensive Idiom list over here :